Capable of adding directional control by narrowing the modifier's beam spread, the 40° Eggcrate Grid for Rapid Box Octa XXL and Switch Octa-L from Westcott also controls spill light and enables selective lighting, meaning that it allows you to light areas that you want illuminated and keeps light from areas where you don't want it. One of the handiest inventions for the image-maker is the collapsible grid. Made of nylon, this grid attaches in seconds to the softbox via touch fasteners and collapses flat to a fraction of its open size for storage and transport in the included case.